If you spot tiny holes and piles of sawdust on your tree, bark beetles could be the culprit. Unfortunately, the solution isn't as simple as spraying them.

Spokane's urban forest is facing a significant challenge due to a pine bark beetle outbreak, which has resulted in the ...

Add Yahoo as a preferred source to see more of our stories on Google. Trees produce antibodies against harmful fungi. But bark beetles absorb these antibodies and use them to their own advantage. And ...

Bark beetles are attacking trees all over Colorado, but their effects are widely up for debate. The question: Do they ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

Bark beetles can destroy spruce forests by converting the trees' defences into even more toxic substances, scientists ...

Bark beetle-infested spruce trees begin to dry out already before any visible signs of tree mortality appear, a recent study from the University of Eastern Finland shows. Led by Dr Samuli Junttila, ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CLAUSTHAL-ZELLERFELD, Germany (AP) — Nestled ...

Add Yahoo as a preferred source to see more of our stories on Google. Bark beetles are dark flying insects about the size of a grain of rice that leave tiny holes in the bark and branches of trees.

Bark beetles can destroy spruce forests by converting the trees' defences into even more toxic substances, scientists recently discovered. But a special fungus can help the trees circumvent this ...